Predicted to enable G protein-coupled receptor activity. Predicted to be involved in G protein-coupled receptor signaling pathway and cellular response to hormone stimulus. Predicted to act upstream of or within neuropeptide signaling pathway. Predicted to be located in membrane. Predicted to be active in plasma membrane. Is expressed in brain; female organism; and male organism. Orthologous to human NPFFR1 (neuropeptide FF receptor 1).