Probable voltage-gated potassium channel inhibitor. Expressed by the venom gland. Has the structural arrangement of an alpha-helix connected to a beta-sheet by disulfide bonds (CSalpha/beta). Does not block or only poorly Shaker B and Kv1.3/KCNA3 potassium channels. Belongs to the short scorpion toxin superfamily. Potassium channel inhibitor family. Alpha-KTx 18 subfamily. Lacks the dyad motif characteristic of alpha-KTx and generally associated with channel blockage.