Cardioactive peptide. Corazonin is probably involved in the physiological regulation of the heart beat (By similarity). In larvae, both corazonin and corazonin(3-11) are expressed in the CNS but not the midgut or thoracic perisympathetic organs (tPSO) and abdominal perisympathetic organs (aPSO). Corazonin is expressed in the ring gland (at protein level). In adults, corazonin is expressed in brain, cardiaca, corpora allata and thoracic-abdominal ganglion (at protein level). Detected in larvae and adults. Belongs to the corazonin family.