Predicted to enable sodium channel regulator activity. Involved in sensory perception of sound. Predicted to be located in endoplasmic reticulum membrane and neuronal cell body. Human ortholog(s) of this gene implicated in autosomal recessive nonsyndromic deafness 8 and sensorineural hearing loss. Orthologous to human TMPRSS3 (transmembrane serine protease 3). [provided by Alliance of Genome Resources, Apr 2022]