Enables glycosphingolipid binding activity. Acts upstream of or within neuron projection development. Located in basement membrane and synaptic cleft. Part of laminin-10 complex. Is active in neuromuscular junction. Is expressed in several structures, including alimentary system; central nervous system; genitourinary system; integumental system; and sensory organ. Orthologous to human LAMC1 (laminin subunit gamma 1). [provided by Alliance of Genome Resources, Apr 2022]