Iridoid glucosyltransferase acting exclusively on 7-deoxyloganetin. No activity with 7-deoxyloganetic acid. 7-deoxyloganetin + UDP-alpha-D-glucose = 7-deoxyloganin + H(+) + UDP kcat is 0.0355 sec(-1) for 7-deoxyloganetin. kcat is 0.0320 sec(-1) for UPD-glucose. Expressed in roots. Belongs to the UDP-glycosyltransferase family.