Acts upstream of or within T cell differentiation in thymus and cell-cell adhesion. Located in plasma membrane. Is expressed in several structures, including alimentary system; branchial arch; epithelium; genitourinary system; and thymus. Human ortholog(s) of this gene implicated in autosomal recessive nonsyndromic deafness 111. Orthologous to human MPZL2 (myelin protein zero like 2). [provided by Alliance of Genome Resources, Apr 2022]