Yes. There have been many great women who are a theologian.
Very similar to what a male theologian can do.
Elizabeth Johnson - theologian - was born in 1941.
Nathaniel Micklem - theologian - died in 1976.
Edmund O'Reilly - theologian - died in 1878.
Edmund O'Reilly - theologian - was born in 1811.
Thomas Bartlett - theologian - was born in 1789.
Thomas Bartlett - theologian - died in 1864.
Robert Davidson - theologian - was born in 1927.
John Mill - theologian - died in 1707.
William Reynolds - theologian - was born in 1544.
William Reynolds - theologian - died in 1594.
Robert Jenkin - theologian - was born in 1656.