The domain within your query sequence starts at position 291 and ends at position 498; the E-value for the DUF4203 domain shown below is 8.5e-42.

VFSTLVALLGLFVCFFGHRFWKTDLFFIGFIFLGFFFYILITRLTPLQYDVRLALTAVAG
SFGGLLLVASWWRFGILTLCMLCVGLVLGFLVSSGTFFTPLGNLNVFHDDGVFWVTFSCI
ALLVPVIFMGCLRILNILACGVVGSYSVVLAVNSYMFTSLSYITLNVLRRALNTDFRGAV
IRVPFQTNDYIILAVWGMLAVSGITLQI

DUF4203

 DUF4203
PFAM accession number:PF13886
Interpro abstract (IPR025256):

This domain of unknown function is often found in proteins from the transmembrane 7 superfamily.

This is a PFAM domain. For full annotation and more information, please see the PFAM entry DUF4203