org-id-find
org-id-find is an autoloaded Lisp function in `org-id.el
'.
(org-id-find ID &optional MARKERP)
Return the location of the entry with the id ID.
The return value is a cons cell (file-name . position), or nil
if there is no entry with that ID.
With optional argument MARKERP, return the position as a new marker.