Child theme functions.php not executing

I have the following in a child theme’s functions.php file:

<?php

function theme_child_add_scripts() {
    wp_register_script(
        'script',
        get_stylesheet_directory_uri() . '/js/script.js',
        array( 'jquery' ),
        null,
        false
    );
    wp_enqueue_script( 'script' )
}
add_action('wp_enqueue_scripts', 'theme_child_add_scripts');

script.js isn’t included on the page and there’s no network request going out to get it. What could be going wrong? It’s unclear whether the child theme’s functions.php file is even being executed.

edit: It seems that the functions.php file is not being executed at all, because I put a die(‘foo’) at the top of the file and the page loaded normally. Why would this be happening?

In styles.css:

/*
Theme Name: Theme-child
Template: Theme
*/

Our problem was that our style.css file was in a css folder inside the child theme directory, not at the root of the child theme. When we placed a style.css file at the root and included the comment block with theme name and template it picked up the functions.php file as expected.