The domain within your query sequence starts at position 1 and ends at position 228; the E-value for the XRN_N domain shown below is 4.9e-104.

MGVPKFYRWISERYPCLSEVVKEHQIPEFDNLYLDMNGIIHQCSHPNDDDVHFRISDDKI
FTDIFHYLEVLFRIIKPRKVFFMAVDGVAPRAKMNQQRGRRFRSAKEAEDKIKKAIEKGE
TLPTEARFDSNCITPGTEFMARLHEHLKYFVNMKISTDKSWQGVTIYFSGHETPGEGEHK
IMEFIRSEKAKPDHDPNTRHCLYGLDADLIMLGLTSHEAHFSLLREEV

XRN_N

XRN_N
PFAM accession number:PF03159
Interpro abstract (IPR004859): Signatures of this entry align residues towards the N terminus of several proteins with multiple functions. The members of this family all appear to possess 5'-3' exonuclease activity EC 3.1.11. Thus, the aligned region may be necessary for 5'-3' exonuclease function.
GO function:exonuclease activity (GO:0004527), nucleic acid binding (GO:0003676)

This is a PFAM domain. For full annotation and more information, please see the PFAM entry XRN_N