The domain within your query sequence starts at position 5 and ends at position 68; the E-value for the DPM2 domain shown below is 3e-30.

TDQAVGFGLVAVSLIIFTYYTTWVILLPFIDSQHVIHKYFLPRAYAVLLPLAAGLLLLLF
VGKS

DPM2

DPM2
PFAM accession number:PF07297
Interpro abstract (IPR009914):

This family consists of several eukaryotic dolichol phosphate-mannose biosynthesis regulatory (DPM2) proteins. Biosynthesis of glycosylphosphatidylinositol and N-glycan precursor is dependent upon a mannosyl donor, dolichol phosphate-mannose (DPM). DPM2, an 84 amino acid membrane protein expressed in the endoplasmic reticulum (ER), makes a complex with DPM1 that is essential for the ER localisation and stable expression of DPM1. Moreover, DPM2 enhances binding of dolichol phosphate, a substrate of DPM synthase. Biosynthesis of DPM in mammalian cells is regulated by DPM2 [ (PUBMED:9724629) ].

GO process:dolichol metabolic process (GO:0019348)
GO component:integral component of endoplasmic reticulum membrane (GO:0030176)
GO function:enzyme regulator activity (GO:0030234)

This is a PFAM domain. For full annotation and more information, please see the PFAM entry DPM2