Predicted to enable arrestin family protein binding activity; fatty acid binding activity; and transmembrane signaling receptor activity. Involved in G protein-coupled receptor signaling pathway. Predicted to be located in several cellular components, including cilium; cytoplasmic vesicle; and lysosomal membrane. Predicted to be integral component of plasma membrane. Human ortholog(s) of this gene implicated in obesity. Orthologous to human FFAR4 (free fatty acid receptor 4). [provided by Alliance of Genome Resources, Apr 2022]