The Pfam:Asn_synthase domain within your query sequence starts at position 505 and ends at position 619, and its E-value is 2.4e-9.

RFQSLGLEGLNEEIAMELGRISSRNLGRDDRVIGDHGKEARFPFLDENVVSFLNSLPVWEKVDLTLPRGVGEKLILRLAAMELGLPASALLPKRAIQFGSRIAKLEKSNEKASDK
Pfam:Asn_synthase

Pfam:Asn_synthase
Pfam domain

Pfam ACC: