Pore-forming protein that forms pores of around 1 nm and causes cardiac stimulation and hemolysis. Forms an alpha-helical membrane channel in the prey. Expressed by the venom duct. 9 isoforms are detected in the injectable venom, mainly corresponding to different oxidative states. Found in injectable (milked) (IV) venom. The mature peptide contains 1 cysteine residue. Belongs to the actinoporin family. Conoidea subfamily.