The domain within your query sequence starts at position 78 and ends at position 350; the E-value for the 5-nucleotidase domain shown below is 3.5e-109.

RYQLEHENEPFSPGPAFPFVKALEAVNKRLRELYPDSEDIFDIVLMTNNHAQVGVRLINS
INHYDLFIERFCMTGGNSPICYLKAYHTNLYLSADADKVREAIDEGIAAATIFSPSRDVV
VSQSQLRVAFDGDAVLFSDESERIVKAHGLDRFFEHEKAHENKPLAQGPLKGFLEALGRL
QKKFYSKGLRLECPIRTYLVTARSAASSGARALKTLRSWGLETDEALFLAGAPKGPLLEK
IRPHIFFDDQMFHVAGAQEMGTVAAHVPYGVAQ

5-nucleotidase

5-nucleotidase
PFAM accession number:PF06189
Interpro abstract (IPR010394):

This family consists of both eukaryotic and prokaryotic 5'-nucleotidase sequences ( EC 3.1.3.5 ), including cytosolic 5'-nucleotidase 1A and 1B (NT5C1A/NT5C1B) from mammals. NT5C1A/NT5C1B dephosphorylate the 5' and 2'(3')-phosphates of deoxyribonucleotides and help to regulate adenosine levels [ (PUBMED:11133996) ].

GO process:nucleotide metabolic process (GO:0009117)
GO component:cytoplasm (GO:0005737)
GO function:nucleotide binding (GO:0000166), magnesium ion binding (GO:0000287), 5'-nucleotidase activity (GO:0008253)

This is a PFAM domain. For full annotation and more information, please see the PFAM entry 5-nucleotidase