Is an ortholog of human CIB2 (calcium and integrin binding family member 2) and CIB3 (calcium and integrin binding family member 3). Is predicted to have calcium ion binding activity. Is expressed in cholinergic neurons and the ventral nerve cord. Human ortholog(s) of this gene are implicated in Usher syndrome type 1J and autosomal recessive nonsyndromic deafness 48.