GO:0008526:   phosphatidylinositol transporter activity
Enables the directed movement of phosphatidylinositol into, out of or within a cell, or between cells. Phosphatidylinositol refers to any glycophospholipids with its sn-glycerol 3-phosphate residue is esterified to the 1-hydroxyl group of 1D-myo-inositol.