Predicted to enable calcium ion sensor activity. Predicted to be involved in negative regulation of protein binding activity; regulation of calcineurin-NFAT signaling cascade; and regulation of store-operated calcium entry. Predicted to be located in cytoplasm. Is expressed in several structures, including brain; olfactory epithelium; and testis. Orthologous to human EFHB (EF-hand domain family member B). [provided by Alliance of Genome Resources, Apr 2022]