Predicted to enable cell adhesion molecule binding activity. Acts upstream of or within several processes, including animal organ development; axis elongation; and morphogenesis of an epithelium. Located in cell-cell junction and plasma membrane. Is expressed in several structures, including alimentary system; nervous system; paraxial mesenchyme; reproductive system; and sensory organ. Orthologous to human PTK7 (protein tyrosine kinase 7 (inactive)). [provided by Alliance of Genome Resources, Apr 2022]