Insecticidal neurotoxin that reversibly inhibits the N-methyl-D-aspartate (NMDA)-subtype of ionotropic glutamate receptor (GRIN) and inhibits inactivation of insect sodium channels (Nav). In vivo, is highly toxic to insects. Expressed by the venom gland. Belongs to the neurotoxin 03 (Tx2) family. 05 subfamily.