Predicted to enable protease binding activity and serine-type endopeptidase inhibitor activity. Predicted to be involved in cellular response to osmotic stress; negative regulation of endopeptidase activity; and sensory perception of sound. Located in cytoplasm and nucleus. Is expressed in several structures, including alimentary system; eye surface region; gonad; lung; and vagus ganglion. Human ortholog(s) of this gene implicated in autosomal recessive nonsyndromic deafness 91. Orthologous to human SERPINB6 (serpin family B member 6). [provided by Alliance of Genome Resources, Apr 2022]