Predicted to enable GTPase activity and calcium ion binding activity. Predicted to be involved in several processes, including activation of store-operated calcium channel activity; positive regulation of JNK cascade; and store-operated calcium entry. Predicted to be located in several cellular components, including Golgi apparatus; Weibel-Palade body; and immunological synapse. Orthologous to human CRACR2A (calcium release activated channel regulator 2A). [provided by Alliance of Genome Resources, Apr 2022]