Predicted to enable neuropeptide binding activity and prostaglandin receptor activity. Predicted to be involved in calcium-mediated signaling; chemotaxis; and neuropeptide signaling pathway. Predicted to act upstream of or within adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway; negative regulation of male germ cell proliferation; and positive regulation of G protein-coupled receptor signaling pathway. Predicted to be active in neuron projection. Predicted to be integral component of plasma membrane. Human ortholog(s) of this gene implicated in asthma. Orthologous to human PTGDR2 (prostaglandin D2 receptor 2). [provided by Alliance of Genome Resources, Apr 2022]