The function of ENSG00000100227 (POLDIP3, DNA polymerase delta interacting protein 3) is as follows. Is involved in regulation of translation. Is preferentially associated with CBC-bound spliced mRNA-protein complexes during the pioneer round of mRNA translation. Contributes to enhanced translational efficiency of spliced over nonspliced mRNAs. Recruits activated ribosomal protein S6 kinase beta-1 I/RPS6KB1 to newly synthesized mRNA. Involved in nuclear mRNA export; probably mediated by association with the TREX complex. {ECO:0000269|PubMed:18423201, ECO:0000269|PubMed:22928037}.