Enables zinc ion transmembrane transporter activity. Acts upstream of or within cellular response to zinc ion starvation; cellular zinc ion homeostasis; and zinc ion transport. Located in apical plasma membrane and endosome. Is expressed in several structures, including alimentary system; early embryo; extraembryonic component; genitourinary system; and integumental system. Used to study acrodermatitis enteropathica. Human ortholog(s) of this gene implicated in acrodermatitis enteropathica. Orthologous to human SLC39A4 (solute carrier family 39 member 4). [provided by Alliance of Genome Resources, Apr 2022]