I hope this will help you.
$args = array(
'post_type' => 'your custom post type here',
'posts_per_page' => 5,
'category' => '',
);
$query = new WP_Query( $args );
if ( $query->have_posts() ) {
while ( $query->have_posts() ) {
$query->the_post();
} // end while
} // end if
wp_reset_query();