The 33-year-old former Scotland international joined Nottingham Forest from Norwich before the start of the current campaign but struggled to make a real impact during Gary Megson's reign.
He has been a regular member of the squad under caretaker boss Frank Barlow and Ian McParland but the lure of a move to newly-promoted St Mirren could appeal as the Paisley side look for experienced campaigners for their return to the SPL.