Probable FMRFamide-like neuropeptides (PubMed:27546573). Plays a role in behaviors associated with a sleep-like state induced by stress (SIS), acting in concert with the FMRFamide related peptide flp-13 and neuropeptide-like protein nlp-8 (PubMed:27546573). Expressed in the ALA neuron in L4 stage larvae. Belongs to the FARP (FMRFamide related peptide) family.