Enables cadmium ion transmembrane transporter activity. Involved in cadmium ion transmembrane transport; cellular detoxification of cadmium ion; and detoxification of copper ion. Located in endosome and vacuolar membrane. Expressed in coelomocyte; head neurons; intestinal cell; and tail neurons. Human ortholog(s) of this gene implicated in dyschromatosis universalis hereditaria. Is an ortholog of human ABCB6 (ATP binding cassette subfamily B member 6 (LAN blood group)).