Involved in several processes, including negative regulation of cell growth; odontogenesis; and regulation of smoothened signaling pathway. Acts upstream of or within several processes, including nervous system development; regulation of smoothened signaling pathway; and sensory organ development. Located in plasma membrane. Is anchored component of plasma membrane. Is expressed in several structures, including alimentary system; brain; embryo mesenchyme; genitourinary system; and sensory organ. Orthologous to human GAS1 (growth arrest specific 1). [provided by Alliance of Genome Resources, Apr 2022]