Causes cytolysis by the formation of pores in the membrane. Causes rapid and reversible paralysis in crickets. Has antibacterial activity on the Gram-negative bacterium E.coli (NBRC 3972) (MIC=0.4-0.8 uM), and the Gram-positive bacteria S.aureus (NBRC 13276) (MIC=13-25 uM) and B.subtilis (NBRC 3009) (MIC=0.8-1.6 uM). Forms a helical membrane channel in the prey. Expressed by the venom gland. Monoisotopic mass. PD(50) is 38 mg/kg into the insect A.domestica. Belongs to the non-disulfide-bridged peptide (NDBP) superfamily. Long chain multifunctional peptide (group 2) family.