Induces relaxation of rat smooth muscle from tail artery (EC(50)=10.8 nM) and contraction of that from ileum (EC(50)=645 nM), urinary bladder (EC(50)=1.1 uM) and uterus (EC(50)=1.2 uM). Binds to both bradykinin receptor B1 (BDKRB1) and B2 (BDKRB2). Apart from uterus smooth muscle, the effect via BDKRB2 is stronger