Blocks Kv3 voltage-gated potassium channels. Reduces blood pressure. Moderately expressed in the ectodermal tissue from the distal and proximal tentacles, body wall, and oral disk. Belongs to the sea anemone type 3 (BDS) potassium channel toxin family. Opinions are divided on whether Anemonia viridis (Forsskal, 1775) and Anemonia sulcata (Pennant, 1777) are separate species.