Predicted to enable ATPase-coupled transmembrane transporter activity. Involved in intracellular iron ion homeostasis. Located in mitochondrion. Expressed in coelomocyte; hypodermis; intestine; and spermatheca. Used to study X-linked sideroblastic anemia with ataxia. Human ortholog(s) of this gene implicated in X-linked sideroblastic anemia with ataxia. Is an ortholog of human ABCB7 (ATP binding cassette subfamily B member 7).