Problems finding the Transfer Function of an OpAmp circuit
The full analysis of this circuit is:

\$I_c = sCV_{in}\$

\$V_{out} = -I_c (R||sL) = -I_c \dfrac{sL}{1 + s\frac{L}{R}}\$

\$\Rightarrow  \dfrac{V_{out}}{V_{in}} = -\dfrac{s^2LC}{1 + s\frac{L}{R}}\$

For s large enough, this is approximately:

\$\dfrac{V_{out}}{V_{in}} \approx -sRC\$

This is obvious only if you're familiar with the well known circuit that is identical to this one but without the inductor.