Cationic linear alpha-helical antimicrobial peptide that binds preferentially to charged lipid membranes as compared with zwitterionic ones. It exhibits inhibitory activity against both Gram-positive and Gram-negative bacteria, and moderately stimulates degranulation from the rat peritoneal mast cells. Does not show hemolytic activity. May play a role in preventing infection by microorganisms during prey consumption by their larvae. Assumes an amphipathic alpha-helical conformation in a lipid environment. Forms a membrane channel in the prey. Expressed by the venom gland. Belongs to the MCD family. Eumenitin subfamily.