Binds to several small RNAs that accumulate during recovery from UV irradiation (PubMed:17392270). Contributes to the resistance of D.radiodurans to ultraviolet irradiation (PubMed:10766734). Forms oligomers upon binding DrY RNA, The multimers are of an average size of 700 kDa and are composed of around 12 molecules of Rsr-DrY RNA. The horseshoe-shaped TROVE domain is built with 7 helical HEAT-like repeats, and is closed by the VWFA-like domain giving rise to a ring-shaped monomer. Single-stranded RNA is bound in the positively charged central cavity. The MIDAS-like motif in the VWFA-like domain binds divalent metal cations. Belongs to the Ro 60 kDa family.