Predicted to enable mitochondrion targeting sequence binding activity. Predicted to contribute to protein transmembrane transporter activity. Predicted to be involved in protein import into mitochondrial matrix and tRNA import into mitochondrion. Predicted to be part of mitochondrial outer membrane translocase complex. Is expressed in elongation stage spermatid; germline cell; primary spermatocyte; spermatid; and testis. Used to study cancer. Orthologous to human TOMM20 (translocase of outer mitochondrial membrane 20).