A probable RNA chaperone. Forms a complex with KhpA which binds to cellular RNA and controls its expression. Plays a role in peptidoglycan (PG) homeostasis and cell length regulation. Necessary for correct cell elongation. Forms a complex with KhpA. Has an N-terminal Jag-N domain, a linker with a phosphorylated Thr, and 2 RNA-binding domains (KH and R3H). Cell length is reduced.