Myotropic peptide; increases the frequency of contraction of the heart and stimulates amplitude and tonus of the foregut. Found in the abdominal ganglia and perisympathetic organs. Not detected in the thoracic ganglia, subesophageal ganglion, corpora cardiaca, corpora allata, hypocerebral ganglion or frontal ganglion. Belongs to the periviscerokinin family.