Antimicrobial peptide with potent activity against Gram-negative bacteria (PubMed:24704757). In vitro, is cytotoxic to non-small cell lung adenocarcinoma A549 cells (PubMed:24704757). Also, stimulates production of some pro-inflammatory cytokines (IL-1beta, and IL-23, but not TNF-alpha) by mouse peritoneal macrophages and down-regulates production of the anti-inflammatory cytokine IL-10 by lipopolysaccharide (LPS)-stimulated cells (PubMed:24704757). Very weakly stimulates insulin release (PubMed:30244134). Has a very weak activity in hemolysis (PubMed:24704757). Belongs to the frog skin active peptide (FSAP) family. Frenatin subfamily.