The domain within your query sequence starts at position 30 and ends at position 192; the E-value for the CD99L2 domain shown below is 1.3e-59.

FNLEDALKETSSVKQRWDHVATTTTRRPGTTRAPSNPMELDGFDLEDALDDRNDLDGPKK
PSAGEAGGWSDKDLEDIVEGGGYKPDKNKGGGGYGSNDDPGSGISTETGTIAGVASALAM
ALIGAVSSYISYQQKKFCFSIQQGLNADYVKGENLEAVVCEEP

CD99L2

 CD99L2
PFAM accession number:PF12301
Interpro abstract (IPR022078):

This family of proteins is found in eukaryotes. Proteins in this family are typically between 165 and 237 amino acids in length. CD99L2 and CD99 are involved in trans-endothelial migration of neutrophils in vitro and in the recruitment of neutrophils into inflamed peritoneum.

This is a PFAM domain. For full annotation and more information, please see the PFAM entry CD99L2