Predicted to enable P-type calcium transporter activity. Acts upstream of or within determination of heart left/right asymmetry. Predicted to be located in sarcoplasmic reticulum membrane. Predicted to be active in membrane. Is expressed in axis; cardiac ventricle; myotome; pectoral fin; and pectoral fin musculature. Human ortholog(s) of this gene implicated in acrokeratosis verruciformis; essential hypertension; keratosis follicularis; and pulmonary hypertension. Orthologous to human ATP2A2 (ATPase sarcoplasmic/endoplasmic reticulum Ca2+ transporting 2).