Predicted to enable calcium ion binding activity and protein homodimerization activity. Predicted to be involved in B cell differentiation. Predicted to act upstream of or within positive regulation of cell population proliferation. Predicted to be located in endoplasmic reticulum and perinuclear region of cytoplasm. Predicted to be active in cytoplasm and glutamatergic synapse. Orthologous to human TPD52 (tumor protein D52). [provided by Alliance of Genome Resources, Apr 2022]