Has antimicrobial activity against B.subtilis, E.coli, E.faecalis, P.denitrificans, P.aeruginosa, P.putida, S.aureus, and S.epidermidis. Shows insecticidal and hemolytic activities. Probably acts by disturbing membrane function with its amphipathic structure. Synergistically increases the insecticidal activity of CSTX-1 (AC P81694), CSTX-9 (AC P58604), and CSTX-13 (AC P83919) by up to 65% (PubMed:15914655). Also inhibits the formation of nitric oxide by neuronal nitric oxide synthase. Monomer (Probable). Interacts with CSTX-1 (AC P81694), CSTX-9 (AC P58604), and CSTX-13 (AC P83919) (PubMed:15914655). Expressed by the venom gland. LD(50) is 5.9 pmol/mg on Drosophila. Belongs to the cationic peptide 04 (cupiennin) family. 01 subfamily.