Default mms.apk (transaction services)

I am seeing in running processes that mms.apk (transaction services) is always running...anyone else have this ?

is needed ?
[Phone]Samsung Google Nexus S Gt-i9023 Crespo(Soju) VDF
[Rom]Fireb33@Stock JellyBean-4.1.2 JZO54K BMseeder
[Kernel]Bedalus@Marmite MTP 404Mb Ram zCache 3.0.31 v10.3
[Recovery]Koush@ClockWorkMod Touch v6.0.4.3