Enables P-type calcium transporter activity and calcium-dependent ATPase activity. Involved in calcium ion transmembrane transport; endoplasmic reticulum calcium ion homeostasis; and liver regeneration. Predicted to be located in organelle membrane and sarcoplasmic reticulum. Predicted to be integral component of membrane. Biomarker of hypertension. Orthologous to human ATP2A3 (ATPase sarcoplasmic/endoplasmic reticulum Ca2+ transporting 3). [provided by Alliance of Genome Resources, Apr 2022]