Component of the mitochondrial outer import machinery (MIM) complex that mediates transport of proteins into mitochondrial compartments (PubMed:33138913). Promotes the insertion of tom70 into the outer mitochondrial membrane (PubMed:33138913). Promotes the insertion of atg43 into the outer mitochondrial membrane (PubMed:33138913). Involved in import of the subset of proteins with multiple alpha-helical transmembrane segments (By similarity). Component of the mitochondrial outer import machinery (MIM) complex containing at least mim1 and mim2 (PubMed:33138913). Interacts with mim1 (PubMed:33138913). Interacts with mitophagy receptor atg43 (PubMed:33138913). Differentially expressed during meiosis. Abnormal localization of atg43 to the outer mitochondrial membrane leading to abnormal mitophagy during nitrogen starvation (PubMed:33138913). Leads to extremely slow growth at various temperatures and delayed commitment to mitosis (PubMed:21270388, PubMed:33138913). Belongs to the MIM2 family.