Predicted to enable calcium-release channel activity. Predicted to be involved in intracellular signal transduction; negative regulation of Ras protein signal transduction; and regulation of GTPase activity. Predicted to act upstream of or within cellular response to heat. Predicted to be intrinsic component of the cytoplasmic side of the plasma membrane. Is expressed in several structures, including alimentary system; brain; genitourinary system; immune system; and neural retina. Used to study aplastic anemia. Orthologous to human RASA3 (RAS p21 protein activator 3). [provided by Alliance of Genome Resources, Apr 2022]