Adapter protein for pexophagy and the Cvt targeting pathway; directs receptor-bound cargo to the phagophore assembly site (PAS) for packaging into vesicles; required for the recruitment of Atg proteins to the PAS, facilitating Cvt vesicle formation; recruits Dnm1p to facilitate fission of mitochondria that are destined for removal by mitophagy; dynamic association with the daughter (old) SPB is involved in microtubule-mediated chromosome segregation