The domain within your query sequence starts at position 1 and ends at position 128; the E-value for the DUF4577 domain shown below is 1.5e-73.

MTHSSQDAGSHGIQEEGRLYVVDSINDLNKLSLCPMESQHLFSLEDKIPNAGTAPGNGRR
GLFFVGLLLVLTVSLALVFFAIFLIIQTGNQMEDVSRRLTAEGKDIDDLKKINNMIVKRL
NQLDSEQN

DUF4577

 DUF4577
PFAM accession number:PF15145
Interpro abstract (IPR028099):

The function of this family of proteins, has not, as yet, been determined. This family of proteins is found in eukaryotes and includes human coiled-coil domain-containing transmembrane protein C7orf53.

This is a PFAM domain. For full annotation and more information, please see the PFAM entry DUF4577