Predicted to enable calcium channel regulator activity. Predicted to be involved in activation of store-operated calcium channel activity and calcium-mediated signaling using intracellular calcium source. Predicted to be located in endoplasmic reticulum membrane and endoplasmic reticulum-plasma membrane contact site. Predicted to be active in cortical endoplasmic reticulum and membrane. Is expressed in lung; spleen; stomach; and testis. Orthologous to several human genes including STIMATE (STIM activating enhancer). [provided by Alliance of Genome Resources, Apr 2022]