Enables calcium channel regulator activity. Involved in sensory perception of sound and visual perception. Predicted to be located in Golgi apparatus and plasma membrane. Used to study autosomal recessive nonsyndromic deafness 93. Human ortholog(s) of this gene implicated in autosomal recessive nonsyndromic deafness 93. Orthologous to human CABP2 (calcium binding protein 2). [provided by Alliance of Genome Resources, Apr 2022]