Mitochondrial outer membrane protein protein; co-assembles with Mdm10p into the mitochondrial sorting and assembly machinery (SAM) complex and cooperates with Mdm10p in the assembly of the translocase of the outer membrane (TOM) complex; identified based on homology to the filamentous fungus, <i>Ashbya gossypii</i>; SWAT-GFP and seamless-GFP fusion proteins localize to the mitochondria