The domain within your query sequence starts at position 1 and ends at position 269; the E-value for the DUF4638 domain shown below is 3e-125.

MTEVVEDTENLMPTERKSFWRSAEERRMSDLTRVLEWLERRQGKKRALQKKKEETKSTEE
KAGKKNVGAKKKLEKVSRKVTFHKGYVRPVKKKEPTIYHKRNEIDLKSKRLSMITANFRD
SNKKSGQSGSRRTSESTDIDIKDVIALETNSRVSAFRRQSSVDPGIQEGMFGSRRAGILR
EWANKAPDNNYERKLKSLMEKGMDPKMEISKMLKPEEVLSCRYLRLSKNNIKTLIKLCKD
AGMDVDIHPHMVEAEIDAKKIFGQRLSVA

DUF4638

 DUF4638
PFAM accession number:PF15472
Interpro abstract (IPR029171):

This entry represents a group of eukaryotic proteins that are typically between 240 and 272 amino acids in length. Their function is not known.

This is a PFAM domain. For full annotation and more information, please see the PFAM entry DUF4638