Predicted to enable collagen binding activity. Acts upstream of or within defense response to bacterium; positive regulation of innate immune response; and sensory perception of sound. Located in extracellular matrix and extracellular region. Is expressed in central nervous system; inner ear; olfactory epithelium; and vibrissa. Used to study autosomal dominant nonsyndromic deafness 9. Human ortholog(s) of this gene implicated in autosomal dominant nonsyndromic deafness 9 and autosomal recessive nonsyndromic deafness 110. Orthologous to human COCH (cochlin). [provided by Alliance of Genome Resources, Apr 2022]