Predicted to enable transmembrane transporter activity. Predicted to be involved in mitochondrial transmembrane transport. Predicted to act upstream of or within amino acid transport. Located in mitochondrion. Is expressed in brain; metanephros; and testis. Human ortholog(s) of this gene implicated in combined oxidative phosphorylation deficiency 18. Orthologous to human SFXN4 (sideroflexin 4). [provided by Alliance of Genome Resources, Apr 2022]