This gene encodes the human homolog of the yeast Imp3 protein. The protein localizes to the nucleoli and interacts with the U3 snoRNP complex. The protein contains an S4 domain. IMP3 (IMP3, U3 Small Nucleolar Ribonucleoprotein) is a Protein Coding gene. Diseases associated with IMP3 include Enchondroma. Among its related pathways are MAPK-Erk Pathway and rRNA processing in the nucleus and cytosol. GO annotations related to this gene include poly(A) RNA binding and structural constituent of ribosome.