The RRM-like (RL) domain is found in the N-terminal region of the polyA polymerase PAPD1. It contributes to PAPD1 dimerization and has a fold similar to RNP-type RBDs [1].

1: Structural basis for dimerization and activity of human PAPD1, a noncanonical poly(A) polymerase. Bai Y, Srivastava SK, Chang JH, Manley JL, Tong L; Mol Cell. 2011;41:311-320. PMID:21292163