Acts upstream of or within cell-cell junction organization and sensory perception of sound. Located in Schmidt-Lanterman incisure; paranodal junction; and tight junction. Is expressed in several structures, including brain; genitourinary system; gut; immune system; and sensory organ. Used to study autosomal recessive nonsyndromic deafness 49. Human ortholog(s) of this gene implicated in autosomal recessive nonsyndromic deafness 49. Orthologous to human MARVELD2 (MARVEL domain containing 2). [provided by Alliance of Genome Resources, Apr 2022]