In insects, FMRFamide and related peptides have modulatory actions at skeletal neuromuscular junctions, and peptides that are immunologically related to FMRFamide are released into the circulation from neurohemal organs. This precursor includes 13 peptides that have FMRF or related sequences at their C-termini, and other putative neuropeptides. Belongs to the FARP (FMRFamide related peptide) family.