Plays an important role in the removal of damaged mitochondria via mitophagy by controlling the stability and localization of RAB7A. Required for the recruitment of RAB7A and ATG9A vesicles to damaged mitochondria and promotes the stability of RAB7A by inhibiting its proteasomal degradation during mitophagy. Interacts with the MON1A-CCZ1B complex (PubMed:34432599). Interacts with GDP-bound RAB7A and promotes its interaction with the MON1A-CCZ1B complex (PubMed:34432599). Belongs to the RIMOC1 family. Unlikely isoform. Aberrant splice sites.