Phosphoinositide binding protein; required for autophagy of bulk cargoes such as ribosomes and the FAS complex; roles in both rapamycin-induced bulk microautophagy and micronucleophagy; amphipathic loop (6C/D) required for vacuole membrane scission and protein sorting in diploids; PROPPIN family member defined by a seven-bladed beta-propeller fold and PI binding-FRRG motif; localizes to phagophore assembly site and phagophore edges; accumulates as puncta on the vacuolar membrane upon starvation