sap basis admin role in sap implementation

hello group

iam new to this group and find it very interesting when i read the thread topics.ihave joined a company as a sap basis admin.i have been working as a sap support personal form the last six months.iam going to be a part of sap implementtion team and i dont have much idea about the responsibilities i will be given.i shall appreciate if u could give a detail information about the roles of a sap basis consultant

thank u very much .please do reply me.