Regulates the coordinated translation of type I collagen alpha-1 and alpha-2 mRNAs, CO1A1 and CO1A2. Stabilizes mRNAs through high-affinity binding of a stem-loop structure in their 5' UTR. This regulation requires VIM and MYH10 filaments, and the helicase DHX9 (By similarity). Interacts (via the HTH domain) with VIM/vimentin. Interacts (via C-terminus) with non-muscle myosin MYH10. Interacts (via C-terminus) with DHX9 (By similarity). Shuttles between the nucleus and the cytoplasm. Expressed in numerous tissues. Highest expression in heart and brain, intermediate in kidney, skeletal muscle and testis, lowest expression in testis (at protein level). The RRM domain mediates the association with collagen mRNAs stem-loops.