Induces contraction of rat ileum smooth muscle but has no activity towards rat smooth muscle from tail artery, urinary bladder or uterus. Binds to both bradykinin receptor B1 (BDKRB1) and B2 (BDKRB2); the effect via BDKRB1 is stronger. Induces contraction of rat ileum smooth muscle. Binds to bradykinin receptors. Expressed by the skin glands. [Val1,Thr6]-bradykinin. [Val1,Thr6,des-Arg9]-bradykinin. Belongs to the bradykinin-related peptide family.