Non-essential conserved protein with a role in mRNA decapping%3B specifically affects the function of the decapping enzyme Dcp1p%3B mediates decay of the RPS28B mRNA via binding to both Rps28Bp (or Rps28Ap) and the RPS28B mRNA%3B mediates decay of the YRA1 mRNA by a different%2C translation-independent mechanism%3B localizes to cytoplasmic mRNA processing bodies%3B forms cytoplasmic foci upon DNA replication stress