function retuning refcursor, order by ignored?

It seems that at least in the way I've written the function below, ORDER BY
is ignored. I've seen hints that one can declare the refcursor as a specific
query and that apparently the order by clause there is respected. But I
don't find much by way of examples in the docs or on this list. I will
eventually need LIMIT and OFFSET as well as ORDER BY. It would be extremely
helpful if someone could take the function below and rearrange so that it
supports ORDER BY, LIMIT and OFFSET.

CREATE or REPLACE FUNCTION "public"."proc_item_list"(
IN "pint_org_id" int4,
IN "pbool_active" bool)
RETURNS "pg_catalog"."refcursor" AS
$BODY$
DECLARE
     ref refcursor;
BEGIN
     OPEN ref FOR SELECT item_id, item_name, item_org_id, item_active
          FROM public.t_item
          WHERE item_org_id = "pint_org_id" and item_active = "pbool_active"
          ORDER BY item_id;
     RETURN ref;
END;
$BODY$
LANGUAGE 'plpgsql' VOLATILE;
--
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