The Pfam:CD20 domain within your query sequence starts at position 43 and ends at position 141, and its E-value is 1.5e-18.

VLGAIQVMIAFINFSLGIIIILNRVSERFMSVLLLAPFWGSIMFIFSGSLSIAAGVKPTKAMIISSLSVNTISSVLAVAASIIGVISVISGVFRQFRSQ
Pfam:CD20

Pfam:CD20
Pfam domain

Pfam ACC: