Component of a cell-surface receptor complex that mediates cell-cell interactions between muscle precursor cells. Promotes differentiation of myogenic cells (By similarity). Part of a complex that contains BOC, CDON, NEO1, cadherins and CTNNB1. Interacts with NTN3 (By similarity). Interacts with PTCH1 (By similarity). Interacts with GAS1 (By similarity). Interacts with DHH, IHH and SHH. N-glycosylated. The disease is caused by variants affecting the gene represented in this entry.