Non-classical phosphatidylinositol (PtdIns) transfer protein (PITP), which exhibits PtdIns-binding/transfer activity in the absence of detectable PtdCho-binding/transfer activity. May also regulate post-Golgi membrane-trafficking events and have a role resistance to oxidative stress (By similarity). Binds phosphatidylinositol (PtdIns). Belongs to the PITP family.