Predicted to enable heterocyclic compound binding activity; myosin V binding activity; and small GTPase binding activity. Acts upstream of or within cholesterol homeostasis. Predicted to be located in brush border membrane. Predicted to be spanning component of plasma membrane. Orthologous to human NPC1L1 (NPC1 like intracellular cholesterol transporter 1). [provided by Alliance of Genome Resources, Apr 2022]