Binds to chitin. Shows strong activity against E.coli (IC(50) is 1.2 ug/ml). Is also very active against S.aureus (IC(50) is 0.8 ug/ml), C.albicans (IC(50) is 0.9 ug/ml) and P.pastoris (IC(50) is 0.3 ug/ml). Binds to chitin (5.2 uM are required to obtain 50% of binding). Causes hemolysis on sheep erythrocytes, probably by forming ion-permeable pores. Granular hemocytes, small secretory granules. The presence of a 'disulfide through disulfide knot' structurally defines this protein as a knottin.