Enables identical protein binding activity. Involved in negative regulation of smoothened signaling pathway and positive regulation of smoothened signaling pathway. Acts upstream of or within aorta development; cardiac septum development; and coronary vasculature development. Located in ciliary basal body. Is expressed in metanephros and testis. Used to study acrocallosal syndrome; ciliopathy; congenital diaphragmatic hernia; and hydrolethalus syndrome. Human ortholog(s) of this gene implicated in acrocallosal syndrome; cleft lip; and hydrolethalus syndrome 2. Orthologous to human KIF7 (kinesin family member 7). [provided by Alliance of Genome Resources, Apr 2022]