The domain within your query sequence starts at position 1 and ends at position 129; the E-value for the Gaa1 domain shown below is 1.9e-46.

XSASTESLVLTVPCGPDATNSQAVGLLLALAAHFRGQIYWAKDIIFLVTDHDLLGTEAWL
EAYHDINVTGIQSSPLQGRAGAIQAAVALELSSDVVTSLDVTVEGLNAAAPGLDVTRRAV
AGFADTATH

Gaa1

 Gaa1
PFAM accession number:PF04114
Interpro abstract (IPR007246):

GPI (glycosyl phosphatidyl inositol) transamidase is a multiprotein complex required for a terminal step of adding the glycosylphosphatidylinositol (GPI) anchor attachment onto proteins. Gpi16, Gpi8 and Gaa1 form a sub-complex of the GPI transamidase.

GO component:GPI-anchor transamidase complex (GO:0042765), integral component of membrane (GO:0016021)

This is a PFAM domain. For full annotation and more information, please see the PFAM entry Gaa1