function bp_activity_action_friends_feed() {
	if ( ! bp_is_active( 'friends' ) || ! bp_is_user_activity() || ! bp_is_current_action( bp_get_friends_slug() ) || ! bp_is_action_variable( 'feed', 0 ) ) {
		return false;
	}

	// Setup the feed.
	buddypress()->activity->feed = new BP_Activity_Feed( array(
		'id'            => 'friends',

		/* translators: Friends activity RSS title - "[Site Name] | [User Display Name] | Friends Activity" */
		'title'         => sprintf( __( '%1$s | %2$s | Friends Activity', 'buddypress' ), bp_get_site_name(), bp_get_displayed_user_fullname() ),

		'link'          => trailingslashit( bp_displayed_user_domain() . bp_get_activity_slug() . '/' . bp_get_friends_slug() ),
		'description'   => sprintf( __( "Activity feed for %s's friends.", 'buddypress' ), bp_get_displayed_user_fullname() ),
		'activity_args' => 'scope=friends'
	) );
}