Predicted to enable calcium channel regulator activity; calcium ion binding activity; and store-operated calcium channel activity. Predicted to be involved in activation of store-operated calcium channel activity; cellular calcium ion homeostasis; and store-operated calcium entry. Predicted to act upstream of or within calcium ion transport. Predicted to be integral component of membrane. Predicted to be active in endoplasmic reticulum and plasma membrane. Is expressed in several structures, including adipose tissue; brain; cardiovascular system; endocrine gland; and male reproductive gland or organ. Orthologous to human STIM2 (stromal interaction molecule 2). [provided by Alliance of Genome Resources, Apr 2022]