Iridoid glucosyltransferase acting exclusively on 7-deoxyloganetic acid. No activity with 7-deoxyloganetin. Catalyzes the fourth to last step in secologanin biosynthesis. 7-deoxyloganetate + UDP-alpha-D-glucose = 7-deoxyloganate + H(+) + UDP kcat is 0.130 sec(-1) for 7-deoxyloganetic acid. kcat is 0.325 sec(-1) for UPD-glucose. Expressed in leaves, roots and stems. Lower levels of expression in flowers. Preferentially expressed in internal phloem parenchyma cells. Belongs to the UDP-glycosyltransferase family.