Mitophagy receptor that tethers atg8 to the mitochondrial outer membrane to promote selective autophagy. Interacts (via N-terminal atg8 interacting motif) with atg8; the interaction is direct (PubMed:33138913). Interacts with the mitochondrial outer import machinery (MIM) complex subunits mim1 and mim2 (PubMed:33138913). Increases during nitrogen starvation (at protein level) (PubMed:33138913). Repressed in nutrient-replete conditions in a TORC1-dependent manner (at protein level) (PubMed:33138913). The atg8 interacting motif (AIM) is required for the interaction with atg8 (PubMed:33138913). The AIM motif is required for atg43 function as mitophagy receptor (PubMed:33138913). Abnormal mitophagy during nitrogen starvation (PubMed:33138913). Decreases vegetative cell population growth (PubMed:33138913).