Plays a role in vesicular protein sorting. Required for the sorting and delivery of a subset of soluble vacuolar hydrolases. Required for retention of late Golgi membrane proteins and vacuolar biogenesis. Component of the membrane-associated retromer complex which is essential in endosome-to-Golgi retrograde transport. The VPS5-VPS17 subcomplex may assemble onto the membrane to promote vesicle formation. Component of the retromer complex which consists of VPS29, VPS26, VPS35, VPS5 and VPS17. Component of a retromer subcomplex consisting of VPS5 and VPS17. Membrane-associated on the cytoplasmic side of either the Golgi complex or an intermediate in Golgi to vacuole transport. Phosphorylated on one or more serine residues. Present with 7380 molecules/cell in log phase SD medium. Belongs to the VPS17 family.