For WPML 3.2+ correct version for translating permalinks is
Documentation for wpml_object_id
For versions older than 3.2 you can use version below
Parameters for icl_object_id are:
- Term id for taxonomies, post id for posts and pages
- Element type ie. comment, post or page
- Return original value if translation is missing. Defaults to true
- Language code, if missing will use the current language.