Weakly blocks Kv1.3/KCNA3 voltage-gated potassium channels (Kd is estimated to be 69 nM). Expressed by the venom gland. Has the structural arrangement of an alpha-helix connected to a beta-sheet by disulfide bonds (CSalpha/beta). Belongs to the short scorpion toxin superfamily. Potassium channel inhibitor family. Alpha-KTx 02 subfamily.