Cytolysin that shows hemolytic activity (on bovine erythrocytes, HC(50)=5.75 mg/ml) (By similarity). This hemolytic activity is completely inhibited by small unilamelar vesicles composed of PC/PG, PC/PI and PC/PS in 1:1 molar ratios (with at least 100 mg/ml concentration) (By similarity). The recombinant protein does not show hemolytic activity, suggesting that it is not properly folded or that it requires a free N-terminal end for its activity (Probable). Localized within the skin and proboscis and are most readily isolated from body mucus secretions. Belongs to the worm cytolysin family.