Enables zinc ion transmembrane transporter activity. Acts upstream of or within chordate embryonic development; limb development; and zinc ion transport. Predicted to be integral component of membrane. Predicted to be active in plasma membrane. Is expressed in several structures, including alimentary system; genitourinary system; integumental system; nervous system; and sensory organ. Orthologous to human SLC39A1 (solute carrier family 39 member 1). [provided by Alliance of Genome Resources, Apr 2022]