Enables signaling receptor binding activity. Predicted to be involved in zinc ion transmembrane transport. Predicted to act 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. Orthologous to human SLC39A1 (solute carrier family 39 member 1). [provided by Alliance of Genome Resources, Apr 2022]