No Value for $post->rating When Used In Loop In Functions.php

I have a loop of posts setup as a function in functions.php and within this I am trying to return the rating value for each post. When I use the loop outside of functions.php (hardcoded to the page) it works just fine. Only when the loop is used as a function in functions.php does it returns nothing. Anyone know why this might be happening?

function TheAdListTax ( $Tax , $Term , $BrandName , $BrandLink ) { ?>

<div class="ListOfAdsWrap">

	<div class="ListOfAds NewAds">

		<h2 class="ListOfAdsLabel"><a href="<?php echo $BrandLink; ?>">New <?php echo $BrandName; ?> Commercials</a></h2>

		<ul class="AllAdsInList">
		<?php

		$args = array(
			'showposts' => 4,
			'post_status' => 'publish',
			'tax_query' => array(
				array(
					'taxonomy' => $Tax,
					'field' => 'slug',
					'terms' => $Term
				)
			)
		);

		$NewPosts = new WP_Query(); $NewPosts->query($args);
		while ($NewPosts->have_posts()) : $NewPosts->the_post(); ?>
			<?php
				$TheRating = $post->rating;
				$TopRating = 5;
				$RatingPercent = ($TheRating / $TopRating) * 100;
				$RoundRating = round($RatingPercent);
			?>
			<li class="AdInTheList">
				<div class="Stretch">
				<div class="AdInListImage">
					<?php the_post_thumbnail('medium'); ?>
				</div>

				<div class="AdInListInfo">

					<div class="TopRow">
						<div class="ReviewCount"><?php echo get_comments_number($Post->ID); ?> Reviews</div>
						<div class="ReviewStars">
							<div class="RatingWrap">
								<div class="TheRating" style="width:<?php echo $RoundRating; ?>%;"></div>
							</div>
						</div>
					</div>

					<div class="AdInListTitle"><?php the_title();?></div>

					<div class="SJbtns">
						<ul>
							<li class="BlueBtn"><a href="<?php the_permalink(); ?>">Watch It</a></li>
							<li><a href="https://www.facebook.com/sharer/sharer.php?u=<?php the_permalink(); ?>" target="_blank">Share It</a></li>
						</ul>
					</div>

				</div>
				</div>

			</li>

		<?php endwhile; wp_reset_query(); ?>

		</ul>

		<div class="Clear"></div>

	</div>

</div>

<?php }

https://www.ads-software.com/plugins/post-ratings/